Serving the community since 1911.

Water Department

Metal pipe cover with the word waterLake Mills Light & Water obtains it's drinking water from a series of four (4) ground water wells located throughout the city. These wells draw from a sandstone aquifer approximately 800 to 900 feet deep. They utilize a state of the art ozone purification process to remove any harmful bacteria from the raw water. 

We want you to understand the efforts we make to continually improve the water treatment process and protect our water resources. Click on the link above to see our current Consumer Confidence Report. 

In order to maintain a safe and dependable water supply, we sometimes need to make improvements that will benefit all of our customers. Rate adjustments may be necessary in order to address these improvements. 

Thank you for understanding and allowing us to continue providing you with clean, quality water! 


Please remember to trim your shrubs and trees around your water meter. Your meter reader needs to be able to access your electric and water meters each month, so keep your meters free of branches from trees and shrubs or other plantings. 

Meter readings will be much more accurate and timely if the meter reader can reach the meters safely and easily.

Meter Reading & Billing

Similar to reading your electric meter, Lake Mills Light & Water crew members collect usage data from your water meter with an automatic meter reading (AMR) device. Our data collection devices read your meter from a distance and store that information in a format that is then downloaded into our billing software to help produce your monthly billing statement.

In some cases or during certain times of year when we are not able to get close enough to your meter, our data collection devices are not able to communicate with your meter to deliver consumption data. In that event, we provide you with an estimated billing statement, based on your normal usage history for that time of year. Any difference between the amount actually used and the estimated amount billed is corrected automatically when the next regular meter reading is obtained.  Ultimately, you pay only for the amount of water actually used.

View our Residential, Commercial and Industrial Water Rates

Water Quality

Lake Mills Light & Water routinely monitors the city’s drinking water according to Federal and State regulations. Our constant goal is to provide you with a safe and dependable supply of drinking water. We want you to understand the efforts we make to continually improve the water treatment process and protect our water resources. We are committed to ensuring the quality of your water.

View our most recent Water Quality Report 

If you have any questions about this report or concerning your water utility, please contact Director of Public Works,  Paul Hermanson at (920) 648-4026. 

Lake Mills Light & Water routinely monitors for constituents in drinking water according to Federal and State laws. The current report shows the result of our monitoring for the period of January 1st to December 31st, 2016. 

“All sources of drinking water are subject to potential contamination by constituents that are naturally occurring or is man made. Those constituents can be microbes, organic or inorganic chemicals, or radioactive materials.”   All drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate that the water poses a health risk. More information about contaminants and potential health effects can be obtained by calling the Environmental Protection Agency’s Safe Drinking Water Hotline at (800) 426-4791. 

MCL’s are set at very stringent levels. To understand the possible health effects described for many regulated constituents, a person would have to drink 2 liters of water every day at the MCL level for a lifetime to have a one-in-a-million chance of having the described health effect. 

Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno-compromised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly, and infants can be particularly at risk from infections. These people should seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of infection by cryptosporidium and other microbiological contaminants are available from the Safe Drinking Water Hotline at (800) 426-4791.